What significant event marked the beginning of the American Revolution?

The Battles of Lexington and Concord, occurring on April 19, 1775, are widely recognized as the significant event that marked the beginning of the American Revolution. These skirmishes between British troops and colonial militia were the first military engagements of the conflict, demonstrating the colonists' willingness to take up arms in defense of their rights and freedoms. The battles were sparked by tensions over British taxation and increasing control over colonial affairs, culminating in a tangible outbreak of hostilities.

The significance of Lexington and Concord lies in their role as the catalyst for widespread rebellion. News of the battles spread quickly throughout the colonies, rallying more colonists to the revolutionary cause. This armed resistance ultimately led to the establishment of the Continental Army and the push for independence from British rule.

While the other options represent important events in the build-up to the American Revolution, they do not mark its initial outbreak. The Declaration of Independence was formally adopted later in 1776, the Boston Tea Party was a protest against tax policies in 1773, and the Intolerable Acts were punitive measures enacted by Britain in response to colonial unrest, all contributing factors to the growing discontent, but none served as the initial confrontation that set the revolution in motion.